The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2025
Filed:
Dec. 13, 2022
Rohm Co., Ltd., Kyoto, JP;
Hironori Sumitomo, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A linear power supply circuit includes: an error amplifier configured to output an error signal according to a difference between a feedback voltage based on an output voltage and a reference voltage; a first transistor configured to be controlled by the error signal; a current mirror circuit; a bias current source configured to distribute and supply a bias current to the first transistor and the current mirror circuit; a current amplifier configured to amplify a current outputted from the current mirror circuit; and a compensator configured to compensate for the bias current by a current corresponding to the current outputted from the current amplifier.